GitLab

Show $root_gen_dir to make it more obvious when paths are generated.
Expand "Other" in canned_queries to have one group per top-level
directory to give a bit more granularity.

Change-Id: Ib9630b5aa04e1c52d51e3afa8772a4a2d4392555
Reviewed-on: https://chromium-review.googlesource.com/996909Reviewed-by: Peter Wen <wnwen@chromium.org>
Commit-Queue: agrieve <agrieve@chromium.org>
Cr-Commit-Position: refs/heads/master@{#548409}